Yarn



Patented Apr. 25, 1939 YARN Leo Frankel, Northboro, Mass., assignor to Hatters Fur Exchange, Inc., Walden, N. Y., a corporation of New York No Drawing. Application June 9, 1934,

" Serial No. 729,802

8 Claims.

This invention relates to a process of treating animal fibres of hair, fur and the like, other than silk fibres, and it comprises a method of preparing such fibres to be used alone or in combination with fibres such as cotton, wool, silk and rayon He'retofore, great difiiculty has been experi. enced in treating the fibres of hair and fur hereinafter referred to as fur stock due to the dimculties of flying, shedding, and static electricity.

Flying is the tendency of the fibres to scatter or fiy out of the picker or other machines during the manufacture of the yarn. This results not only in loss of the hair or fur fibres, but also greatly interferes with the treatment of other materials because the fibres floating around in the atmosphere settle on other stock.

"Shedding is the tendency of the fibresto loosen and drop out of the yarn after it has been spun. This tendency is very noticeable in all materials in which the fibres of fur or hair are used at present.

By my invention, flying of the fibres is entirely eliminated and shedding" of the yarn in its further operation is minimized.

Fur stock processed by my invention is not affected by static electricity usually present in textile operations. This is a great advantage since hitherto the stock has tended to gather in bunches and to stick to the surfaces with which it comes into contact while being processed, thus making it dimcult to handle.

In carrying out my invention, I modify the form and the friction producing quality of the fibres, causing them to more readily engage and remain'interengaged with other fibres, either of the same, or of a different kind.

In order to remove the grease, the fibres may be soaked in a bath comprising any suitable grease solvent and an alkali. I have found that a solution of five parts of water to one of the fur stock and up to 5%, based on the weight of the fur stock, of each of trichlorethylene and triethanolamine, gives good results. The fur stock in this solution is soaked for from ten to fifteen minutes, the temperature of the solution being maintained preferably between 120 and 140 F. and it may then be removed and put through an extractor. v

The stock may if desired be subjected to another operation for removing the grease and otherwise preparing the fibres for the subsequent treatment described herein. For this step,

a soap solution.may be used. I have found that a solution containing five parts of water to one of the fur stock, and up to 7% olive oil soap and 3% by weight of the fur stock of tallow soap gives good results.

The stock is soaked in this solution for from ten to thirty minutes and may then be removed and put through an extractor.

The fibres to be modified should be in a condition permitting the solution c ontaining an adherent material, with which I treat the fibres.. to come into intimate contact with the fibres, so that the solution can act upon the body of the fibres and be deposited and retained thereon. It will be understood that if the stock has been previously prepared or is in a reasonably clean condition the cleansing step may I next treat the fur stock with a taining an adherent material.

be omitted.

solution con- For this purpose, the fibres may be treated with sodium sulpho-cyanide or any other suitable substance adapted to modify the physical form {of the fibres, and any suitable friction-increasdng adherent material. I have found that a solution comprising five parts of part of fur stock, and up to 5% of water to one the weight of the fur stock of each .of sodium sulpho-cyanide and sericin or silk gum gives satisfactory results. It is desirable to maintain this solution at approximately to F.

The material deposited on, and/or in the fibres is also useful at a later time as a moment facilitating the dyeing of the yarn.

While the step of lubricating the fibres forms no part of the present invention, if

desired, the

treated stock may be spread out and oil sprinkled, sprayed or otherwise distributed thereon. I have found that approximately 1% of neutral oil, based on the weight of the fur stock, will give good results.

What I claim is:

1. A yarn comprising short fur and hair fibres having thereon a substance deposited from a bath containing sulpho-cyanide and sericin.-

2. A yarn comprising curled fur and hair fibers spun in combination with dissimilar fibers, said fur and hair fibers having thereon an artificial coating deposited from a bath containing boiled-off liquor.

3. A yarn comprising short anim al fibres hav- I animal fibers having a deposit of sulpho-cyanide an an adherent material thereon.

'7. Yarn spun at least in part 01 short animal fibers to which an artificial coating comprising sericin is applied prior to spinning.

8. Spun yarn containing short fur and hair fibers rendered more spinnable by a deposit oi sericin thereon prior to spinning.

1E0 FR-ENKEL. 

